The World Urbanization Day is observed every year

189500 – 22650 + 48× ? – 352×18 = 162674

Find the value x² + y², if xy = 13 and x + y = 7.

Find the number in place of ?

6, 14, 26, ?, 106, 214

If 27 (x+y)³ − 8(x−y)³ = (x + 5y) (Ax² + By² + Cxy), then what is the value of (A+B-C)?

Which of the following statements is correct?

I. If x = 12, y = –2 and z = –10, then x³ + y³

+ z³ = 720

If the seven-digit number 94x29y6 is divisible by 72, then what is the value of (2x+3y) for x ≠ y?

If a = 7.250, b = 3.258 and c = 3.992 then value of a³-b³-c³-3abc is.